Researchconducted
by Dr. Wise (Houston Museum of Natural Science), Dr. Dillon (College
of Charleston), and Dr. Harasewych (National Museum of Natural
History, Smithsonian Institution) suggests that all living sinistral whelks
of the west Atlantic are conspecific[of the same species],Busycon perversum (Linnaeus,
1758) being the oldest available nomen. (See abstract)